1、primary
首要的;主要的
That's the primary reason the company's share price has held up so well.
這是公司股票價格一直居高不下的主要原因
。I don't think young people's primary aim in life is to get drunk.
我覺得年輕人生活的主要目標并不是一醉方休
。(教育)初級的,初等的,小學的
Britain did not introduce compulsory primary education until 1880.
直到1880年,英國才開始實行初等義務教育
。Ninety-nine per cent of primary pupils now have hands-on experience of computers.
現在,99%的小學生都親手操作過電腦
。首先的;最早的;最初的
It is not the primary tumour that kills, but secondary growths elsewhere in the body.
原發性腫瘤并不會置人于死地,致命的是身體其他部位的繼發腫瘤
。They have been barred from primary bidding for clients.
他們被禁止對客戶進行最初的投標
。2、prevent
防止;預防;阻止
These methods prevent pregnancy.
這些方法能防止懷孕
。Further treatment will prevent cancer from developing.
進一步的治療將阻止癌癥惡化
。阻止;制止;阻礙
He said this would prevent companies from creating new jobs.
他說這將使公司無法創造新的工作機會
。Its nationals may be prevented from leaving the country.
其國民可能會被禁止出境
。